Big Books of 2026

Join the Goodreads Author Program

Are you S D Simper, author of the books below?
Eve of Endless Night by S D Simper Chaos Undone by S D Simper


To join the author program as S D Simper, you will first need to sign in to Goodreads. Then navigate back to this page to apply.


About the Author Program
Authors on Goodreads
Author Guidelines
Author Program How-To
Author & Advertisers Blog
Ask the Author: Featured Authors
About Goodreads